azure-cli: Deleted keyvault with option --enable-soft-delete true does not appear in list of deleted keyvaults

Describe the bug I create a keyvault with --enable-soft-delete true and then delete this keyvault. The keyvault does not show up in az keyvault list-deleted afterwards, the keyvault can’t be purged with az keyvault purge <kv_name>, and a new keyvault of the same name can not be created.

To Reproduce

$:~/$ az keyvault list
[]

$:~/$ az keyvault create --name test-kv123123123123 --resource-group $RESOURCE_GROUP_NAME --enabled-for-template-deployment true --enable-soft-delete true                                                                                                                                  
{- Finished ..
  "id": "/subscriptions/<some-guid>/resourceGroups/<my-resource-group>/providers/Microsoft.KeyVault/vaults/test-kv123123123123",
  "location": "norwayeast",
  "name": "test-kv123123123123",
  "properties": {
    "accessPolicies": [
      {
        "applicationId": null,
        "objectId": "<some-guid>",
        "permissions": {
          "certificates": [
            "get",
            "list",
            "delete",
            "create",
            "import",
            "update",
            "managecontacts",
            "getissuers",
            "listissuers",
            "setissuers",
            "deleteissuers",
            "manageissuers",
            "recover"
          ],
          "keys": [
            "get",
            "create",
            "delete",
            "list",
            "update",
            "import",
            "backup",
            "restore",
            "recover"
          ],
          "secrets": [
            "get",
            "list",
            "set",
            "delete",
            "backup",
            "restore",
            "recover"
          ],
          "storage": [
            "get",
            "list",
            "delete",
            "set",
            "update",
            "regeneratekey",
            "setsas",
            "listsas",
            "getsas",
            "deletesas"
          ]
        },
        "tenantId": "<some-guid>"
      }
    ],
    "createMode": null,
    "enablePurgeProtection": null,
    "enableRbacAuthorization": null,
    "enableSoftDelete": true,
    "enabledForDeployment": false,
    "enabledForDiskEncryption": null,
    "enabledForTemplateDeployment": true,
    "networkAcls": null,
    "privateEndpointConnections": null,
    "provisioningState": "Succeeded",
    "sku": {
      "name": "standard"
    },
    "softDeleteRetentionInDays": 90,
    "tenantId": "<some-guid>",
    "vaultUri": "https://test-kv123123123123.vault.azure.net/"
  },
  "resourceGroup": "<my-resource-group>",
  "tags": {},
  "type": "Microsoft.KeyVault/vaults"
}                                                                                                                                                            

$:~/$ az keyvault delete --name test-kv123123123123 --resource-group $RESOURCE_GROUP_NAME --verbose                            
Configured default '<my-resource-group>' for arg resource_group_name
Command ran in 3.691 seconds (init: 0.139, invoke: 3.552)                                                                                                    

$:~/$ az keyvault list-deleted                                                                                                 []
[]

$:~/$ az keyvault purge --name test-kv123123123123
No deleted vault was found with name test-kv123123123123

$:~/$ az keyvault create --name test-kv123123123123 --resource-group $RESOURCE_GROUP_NAME --enabled-for-template-deployment true --enable-soft-delete false
The property "enableSoftDelete" can be set to false only for creating new vault. Enabling the 'soft delete' functionality is an irreversible action.

Expected behavior After running az keyvault create --name test-kv123123123123 --resource-group $RESOURCE_GROUP_NAME --enabled-for-template-deployment true --enable-soft-delete true and az keyvault delete --name test-kv123123123123 --resource-group $RESOURCE_GROUP_NAME --verbose, the command az keyvault list-deleted should return a list which includes the recently deleted keyvault, and az keyvault purge --name test-kv123123123123 should purge the deleted keyvault.

Environment summary

Using Azure CLI 2.9.0 on WSL Ubuntu 20.04, Windows 10.

az version                                                                                                               
{
  "azure-cli": "2.9.0",
  "azure-cli-command-modules-nspkg": "2.0.3",
  "azure-cli-core": "2.9.0",
  "azure-cli-nspkg": "3.0.4",
  "azure-cli-telemetry": "1.0.4",
  "extensions": {}
}

Additional context